Change-speed gearing.



G. GOTTA.

CHANGE SPEED GEARING. APPLICATION FILED JUNE 7, 1906.

Patented Sept. 21. 1909. 2 SHEETS-SHEET 1.

G. GOTTA.

CHANGE SPEED GEARING. APPLICATION FILED JUNE 7, 1906.

934,505,, v Patented Sept. 21, 1909.

2 SHEETS-SHEET 2.

UNITED STATES mm orricn.

CHARLES GOTTA, 'OF ROCKFORD, ILLINOIS, ASSIGNOR TO GOTTA TRANSMISSION 00.,

- INQ, OF ROCKFORD, ILLINOIS.

CHANGE-SPEED GEARING.

To 'all whom it may concern:

.Be itknown that L'CH-ARLES Cor'm, a citizen -of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Change-Speed-Gean ing, of which the following :is a specification.

, he object of this invention is to construct achangespeed gearing adapted more particularly for motor 'cars, in which all the ,gears with the exception 'of the pinion directly connected to the motor, remain :at a :standstill when the driven shaft is in direct communication with the driver or motor shaft, and this is accomplished by the employment of two double-facedslidable clutch-sections and disengaging the driven spur toothed-wheel from the pinion on the motor shaft,- all-other toothed-wheels and pinions remaining in mesh all the time.

The further object of this invention is to. lock one of the slidable clutch-sections against movement when the other slidahle-' f instance formed integral therewith. The

clutch section is being moved.

.In the accompanying drawings, Figures 1- tnd 2are end elevatlons of the casing as seen from .the driving end, or :that 'end nextithe motor and .partly in section. F ig. 3 is .a' transverse section on dotted line a a Fig. -9.

4 .is a transverse sectionon dotted line 1) F1 ..'g. .9. Fig. 5 is a vertical section on; doted line-c c Fig. 1. Fig." 6 is an .isomet .rical representation of the slidable=clutch-opbars and a portionof the lower secierati t1on 0' the casing. Fig. 57 is a top view 'of a portion showing the counter-shaft and the means for sliding the toothed-wheel thereon. ,Fig. 8 1s atop view of thelower section of the casing,

with :the operative parts supported ithereby andin which the slidable clutch-sections are in their normal positions. Fig. 9 is a view like -8, but in which one of the slidable clntoh-sectionsis in=engagementwith the direct pinion and the toothed-wheel on the countershaft disengaged from the directrpinion.

The

vided with bearings-2, 3,4 and 5. 'The bearings .2 and 3 support the driving shaft 6 and The driving shaft has a :squared section .8, around section 9, a spurtoothed-wheel .10 .formed integral with the round portion 6, and a clutch section .11 in this instance formed integral with the pin-g :the driven shaft 7.

Specification of Letters 'latent.

of the lower section of the casing lower section 1 of the casing is pro- Patented Sept. 21, 1909.

Application filed June 7 1906. Serial No. 329,637.

ion. This .pinion will be designated hereinafter as the driving pinion. The round section 6 is provided with a central cavity 12 extending in tthfi lengthwise direction of the section and alsoextends through the section motor, not shown,

driving shaft wh round section 20, and a collar 21 is fixedly attached to the round section 7.

Two spur toothed-wheels22 and 23 are .located loosely on-the roundsection 20 and held against movement in the lengthwise direction of thesectionby the collars 18 and 19. The toothed-wheel 22 has a clutch ,face 24, in this toothed wheel 23 base clutch face 25, in this instance formed integral therewith.

A spur toothed-wheel 26 has a clutch face tween the collar 21 and the bearing 3, and can rotate independent of the driven shaft. Thesquare section 14 of the driven shaft supports a slidahle clutch section .27 wh1ch has two clutch faces 28 and 29. The square section 15 of the driven :slidable clutch section clutch zfa es 3land .32.

The lower section of the casing has three extending portions 33, 34 and 34 each provided with a transverse groove 36, 37 and 38 respectively. Between the port1ons33 and 34 is located a slidable bar 39 and which has other bearings 40 formed in the casing. This bar39has a cross-groove bar .is fixedly attached a shipping lever 42 which engages the. slidable clutch section 30. Between the portions 34 and 35 is located aslidable bar 43 and which has another hearing 44 .formed in the casing. This bar has a cross-groove 45, and to the bar 1s fixedly attached a shipping lever 46 which engages the slidable clutch section 27. The bearings 4 and 5 support a countersha-ft-47 and to it are fixedly connected the three spur toothed-wheels 48, 49 and 50.

30 which has two The wheel 48 meshes with the wheel 22 on 41, and to the and through the driving pinion 10. The

collars 18 and 19 are fixedly attached to the 7l and is located on the round section 7 beh ft s orts the s a upp shaft.

the driven shaft, and the wheel 49 meshes with the wheel 23 located on the driven The toothed-Wheel 50 meshes with an intermediate toothed-wheel 51, and this intermediate toothed-wheel meshes with the toothed-wheel 26 located on the-driven shaft 7: The toothed wheels 23 and 49 are for the slow speed, the toothed-wheels 22 and 48 are for the intermediate speed, and the toothedwheels 26, 50 and 51 are for the reverse speed.

A collar 52 is fixedly connected to the counter-shaft 47 and bears against the bear- From the bottom of the lower section 1 of the casing extends a stud 57. A shipping lever has a pivoted connection with the stud 57. The end 58 of this shipping lever 1s located in the annular groove 50, and its other end 59 is located beneath the slidable bar 43. From the slidable bar 43 extends a pin 60, which is located to engage the end 59 of the shipping lever. l

The upper lever-section 61 of the casing is located over the lower section and is provided with bearings 'which hold the driving, driven and intermediate shafts in place. The upper section of the casing, also holds the slidable bars 39 and 43 in their groovedway supports.

From the upper section of the casing project two tubular supports 62 and 63. A rod '64 is located in these supports in a manner to oscillate and reciprocatatherein. To this rod is fixed a finger 65, and when in the position shown at Figs. 1 and 5 is located in the cross-groove 37 of the portion 34. A yoke is supported by the rod 64 and comprises thetwo arms 66 and 67, having the foot pieces 68 and 69 respectively, and a cross-bar connects the arms. The finger 65 is located between the arms 66 and 67 of the yoke. When the, yoke is in the position.

shown at Fig. 1, the foot 68 of the arm 66 will be located in the cross-grooves 36 and 41 of the portion 33 and slidable-bar 39, and the foot 69 of the arm 67 will be located in the cross-grooves 38 and 45 of the portion 35 and slidable-bar 43. When the yoke and finger are in the positions shown at Fig. 1, the slidable-bars39 and 42 will be locked against sliding movement, as the feet 68 and 69 embrace one of the stationary portions 33- and 35, and one of the slidable bars. The rod 64 will also be held against oscillatory movement as the finger 65 is located in the cross-groove of the stationary portion 34.

In order to slide the bar 39, the rod 64 1s .moved lengthwise in its bearings .until the thereby imparting a sliding movement to the bar 39 in either direction. By sliding this bar 39 inward, the clutch-section 30 will be moved into engagement with the clutch face 71 of the toothed-wheel 26, and by moving the bar 39 outward the clutch-section will be moved into engagement with the clutch-face 25 of the toothed-wheel 23. In order to move the slidable-bar 43, the rod 64 is moved to carry the finger 65 into the crossgroove 45 of the bar 43. This movement will carry the yoke with it, so that the foot 68 of the arm 66 will move into the cross-grooves 41,

and 37 of the slidable-bar 39 and the stationary portion 34, thereby holding the slidablebar 39 against lengthwise movement. By oscillating the rod 64, the finger 65 will move the bar 43 in either direction,'and if moved inward, the clutch-section 27 will engage the clutch-face 24 of the toothed-wheel 23, and if moved outward the clutch-section will engage the clutch-face 11 of the toothed-wheel 10. When the slidable-bar 43 is moved outward from its normal or central position, the pin 60 will engagethe end 59 of the shipping-bar causing it to oscillate, thereby moving the .toothedwheel 54 from engagement with the toothed-wheel 10 into the position shown at Figs. 7 and 9. When the slidablebar 43 is moved inward to its normal position from its outward position, the spring 56 will move the toothedwh'ee1 54 into engagement with the toothed-wheel 10. The further inward movement of the slidable-bar 43 will move the pin 60 free of the arm 59 of the shipping lever, at the same time the.

clutch-section 27 is moved into engagement with the clutch-face 24 of the toothed-wheel 22. When the clutch-section 30 is in engagement with the clutch-face of the toothedwheel 23, motion will be transmitted from the driving-shaft through the wheels 10, 54,-

49 and 23 to the driven shaft 7 which will give the slow speed. When the clutch-section 27 is in engagement with the clutch-face 24 of the toothed-wheel 22 motion will he transmitted from thedriving shaft through the wheels 10, 54, 48 and 22-, to' the drivenshaft, which will give the intermediate speed. When the clutch-section 27 is in engagement with the clutch-face 11 of the toothed-wheel 10, the toothed-wheel 54 will be moved out of engagement with the toothed-wheel 10, and a direct connection will be formed between the driving and driven-shafts. When the clutch-section 30 is in engagement with the clutch-face 71 of the toothed-wheel 26, motion will be transmitted from the driving-shaft throu h the wheels 10, 54, 50, 51 and 26, to the rivenshaft, thereby imparting a reverse rotary movement to the driven-shaft. By this arrangement, when a direct connection is made the counter-shaft 4:7 and all the toothedwheels, with the exception of the toothedwheel 10 will remain at a standstill, as the toothed-wheel '54 will. 'be held out of engagement with the toothed-wheel 10. While the slidable-bar 39 is being moved), the slidable-bar 43 is held against movement, and while the slidable-bar 4:3 is being moved, the slidable-bar 39 is held against movement, which prevents the accidental engagement "of the gearing imparting difierent speeds at the same time.

It is evident that the motor may be connected to the shaft 7 and the running gear of the car operated from the shaft 6 without departing from the scope of my invention.

I claim as my invention. 1

I 1. In change speed gearing, thecombinat1on of a shaft 6, a shaft 7, a counter shaft,

being at rest gearing connecting the counter shaft and shaft 7 to impart to the shaft 7 two difl'erent speeds in one direction and one speed in the reverse direction, clutches for connecting the gearsfof the shaft 7 with the shaft 7,

means for locking one clutch against movement while the other is being moved, means for forming a direct connectlon betweenthe shafts 6 and 7, and a gear connection between ,the shaft 6 and counter shaft, the

counter shaft being at 'rest when adirect connection is formed between the shafts 6 and 7. p t

2. In change speed gearing, the combination of a shaft 6, a shaft 7, a counter shaft, gearing connectlng the counter shaft and shaft 7 to impart to the shaft 7 two different speeds in one direction andone speed in the reverse direction, clutches for connecting the gears of the shaft7 with the shaft 7, means for locking one clutch against movement while the other is being moved, means for forming a direct connection between the shafts 6 and 7, a gear connection between the shaft-6 and counter shaft, the counter shaft when a direct connection is formed between A. 0. BEHEL, E. BEHEL,

the shafts 6 and 7, and av spring for restoring theconnection between. the shaft 6 and counter 

